Tumbling barrel



` Patented Sepmg, 1924.. I

unirse stares earEN'r iclasica.

JOSEPH LUPO, JR., 0F NEW YORK, N. Y.

. p TUMBLING BARREL.'

Application led October 1923. Serial No. 668,722.A

T0 all whom it may cou/wcm.' Be it known'that I, JOSEPH LUPO, Jr.,'a

.citizen of the United States., and -a resident of the city of New York, borough of Manhattan, in the county and State of New York,

have inventeda new'and Improved Tumbling Barrel, of which the following is a full, clear, and exact description.

The present invention has relation to an improvement in tumbling barrels employed v for the purpose of cleaning, polishing and iinishing articles. A v rl `he present invention contemplates a tumbling barrel which consists of a'number of parts or elements capable of ready association or disa'ssociation whereby to facilitate the application and removal of the abrasive or otherlining in order that the same may be renewed, when worn. j The invention furthermore contemplates V a tumbling barrel which is comparatively 1n the drawings- Figure 1 is a.. front view of a tumbling barrel'constructed in accordance with the invention, parts being broken away and shown in section to disclose the .underlying structure..

Fig. 2 is a transverse sectional view taken approximately on the line 2-2 of Fig.' 1.

Fig. 3' is a fragmentary pers ective view of the abrasive lining for the tum ling barrel.

Referring to the drawings by characters of reference the tumbling barrel comprising an open ended split/c lindrical body 10 constructed of a materia of the requisite flexibility and a: pair of circular heads 11 and` l12 each of which is provided with an outwardly projectin axial journal. or. trun-y I Anion 13. The hea s 11 and 12 are provided I t with a reduced concentric inwardly projecting portion-'14 'designed to be received encircles the portions 14 when the barrel I within the opposite ends of the body which is assembled. The length of the cylindrical I b ody 10 is .substantially less than thc clrcumference of the portions 14 whereby the end edges 15 and 16 will be spacedapart a suiiicient distance to afford" an opening for the introduction and removal of the articles to the barrel. The lining 17 which is formed.

with an abrasive substance 18 on its inner surface is ofthe saine width as the cylindrical body 10 and of slightly greater length whereby lthe end edges 19 thereof may be turned over the end edges land 16 of the body. edges of the lining 17 are interposed between the side edges of the body 10 and the reduced portions 14 of the heads 11 and 12, said side edges abutting against the shoulders 20 at lthe juncture of the portions 14 with the In assembling the barrel, the side' isl heads 11 and 12. Clamping bars 21 and 22 are superimposed on the end edges 15 and 16 of the body 10 with @the turned over end edges 19 of the liner 17 therebetween and retaining elements 23 extend through the clamping bars, the end edges 19 of the liner,

the end edges 15 and 16 of the body, and are anchored in the reduced ortions 14:. The retaining elements 23 preerably consist of screws which are received in threaded Yopenings 24 in the reduced portions 14. In order to provide means for closing the opening dei'ined by the spaced end edges 15 and 16 of v the body, a cover plate25 is providedl which is of an appropriate size to snugly fit within the o .ning and is curved in conformity witht e peripheral exposed parts of the reduced portions'li. The coverfplate is linedon its inner side by a lining strip section 26 having an abrasive inner surface 27, the opposite ends of which are bent around the opposite end edges of the cover plate and are clam ed between the clamping bars 28 and 29 w ich are detachably secured by screws or other fastening means 30 passing through the clamping bars and anchored 1n the cover plate. The clampin bar 28 is attached to Y 'the clamping bar 21 y h inges which ad mit of the swinging of the cover to open or vclosed position. Preferably thecover is retained in closed condition by means of kee ers 32 on'the clamping bar 22.v After t e barrel elements or artsv are assembled, the

trunnions or jonrn 13 are received in the bearings 33.' The head 12 .which is of an loo ; nals. Vlhere the lining 17 which is ein loyed is sandpaper it is preferably backe byia fabric 34 as illustrated in Fig. 3 for the purpose of' strengthening the sandpaper and reventing cracking of the same when itis exed or curved to conform to the cylindrical body. l 1

ll claim: l

l.. A. tumbling barrel comprising a split cylindrical body, circular heads received within the opposite ends 'of the body, an outwardly progecl'ing axial journal on each head adapted to be received in bearings/for rotatably mounting the barrel, a lining having an abrasive inner surface, the sideedges of said lining being clamped between the perihry of the heads and the side edges of the y with the end edgesof the lining turned over the end ed es of the body, clamping bars overlying t e end edges of the body, and means extending through the Y s aeoaeae clamping bars and body and anchored in the heads for assembling the barrel.

2. A tumbling barrel comprising a split cylindrical body, circular heads received Within the opposite ends of the body, an outwardly projecting axial journal on each head adapted to be received in bearings for rotatablymounting the barrel, a lining having an' abrasive inner surface, the side edges of said-lining being clamped between the peripheryA of the' heads and the side edges of the body with the end edges of the lining turned over the end edges of the body, clamping bars overlying the end edges of the body, me znsextending through the clamping bars and body .and anchored in the heads for assembling the barrel, the end edges of said body being spaced apart to define an opening for introducing and removing the contents of the barrel, and a cover sectionhinged at one edge to one clamping bar and means carried by the other clamping bar `tor engagement with the free edge of the cover to retain the same in closed position.

- Josera-nero, ,ne 

